5.4. Engrave
5.4.1. Overview
图 17.58. Example for the “Engrave” filter
Original image
“Engrave” applied
This filter produces an engraving effect: the image is turned black and white and some horizontal lines of varying height are drawn depending on the value of underlying pixels. The resulting effect reminds of engravings found in coins and old book illustrations.
注意 | |
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The “Engrave” filter operates only on floating selections and layers with an alpha channel. If the active layer does not have an alpha channel please add it first. |
5.4.2. Activating the filter
This filter is found in the image window menu under Filters → Distorts → Engrave….
5.4.3. Options
图 17.59. “Engrave” options
Presets, “Input Type”, Clipping, Blending Options, Preview, Split view
注意 | |
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These options are described in 第 2 节 “Common Features”. |
Height
This option specifies the height of the engraving lines. The value goes from 2 to 16.
Limit line width
If this option is enabled thin lines are not drawn on contiguous color areas. See the figure below for an example of this option result.
图 17.60. Example result of Limit line width option
Original image
Limit line width option enabled
Limit line width option disabled